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1.发明申请公开(公告)号：US20250070651A1
公开(公告)日：2025-02-27
申请号：US18743856
申请日：2024-06-14
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Guangzhuo Li , Pengfei Liu
IPC: H02M1/42
Abstract: A control circuit for a totem pole PFC circuit with a low side power switch coupled between a switching node and a reference ground. The control circuit includes fourth pins. The first pin is coupled to the switching node. The second pin is coupled to the switching node through a first unidirectional device. The third pin is coupled to a control terminal of the low side power switch. The fourth pin is configured to be coupled to the reference ground. The control circuit is configured to control the turning-off of the low side power switch based on a first voltage indicative of a drain-source voltage of the low side power switch.
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公开(公告)号：US12237682B2
公开(公告)日：2025-02-25
申请号：US17772982
申请日：2020-10-28
Applicant: BreakEats LLC
Inventor： Robert James Fanfelle , Ezra Robert Gold
Abstract: An electrical energy storage device for use in an electrical distribution grid where storage may be located across various voltage transitions throughout the network, enabling energy to bypass stepdown transformers, monitoring on both sides of a transformer, and power conditioning to optimize transformer and grid performance.
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公开(公告)号：US12224672B2
公开(公告)日：2025-02-11
申请号：US18174193
申请日：2023-02-24
Applicant: CHICONY POWER TECHNOLOGY CO., LTD.
Inventor： Min-Han Lee
Abstract: An asymmetric power converter includes a primary-side rectifying/filtering circuit, a power factor correction circuit, an asymmetric conversion circuit, and a feedback control circuit. The primary-side rectifying/filtering circuit rectifies and filters an input voltage to output a first voltage. The power factor correction circuit converts the first voltage into a power voltage. The asymmetric conversion circuit converts the power voltage into an output voltage to supply power to a load, and an output current is drawn by the load. The feedback control circuit generates a feedback control signal according to a load power demand provided by the load. The feedback control circuit controls the asymmetric conversion circuit to operate in a full-bridge resonant mode, a half-bridge resonant mode, or a hybrid half-bridge resonant mode according to the feedback control signal.
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公开(公告)号：US12224671B2
公开(公告)日：2025-02-11
申请号：US18069527
申请日：2022-12-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuaki Mino
Abstract: A power supply circuit includes a transformer having a primary winding and secondary windings, a first power conversion circuit configured to convert a DC voltage into an AC voltage and output the AC voltage to the primary winding, a rectifying and smoothing circuit that is connected to the secondary winding and is configured to rectify and smooth an alternating current output from the secondary winding, and a second power conversion circuit configured to boost a direct current output from the rectifying and smoothing circuit and supply to a load a DC voltage lower than a rated voltage of the load set in advance.
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公开(公告)号：US12224583B2
公开(公告)日：2025-02-11
申请号：US18197550
申请日：2023-05-15
Applicant: Gridbridge, Inc.
Inventor： Chad Eckhardt , Stephen Timothy Watts
IPC: G06F1/30 , G05B15/02 , G06F1/26 , G06Q50/06 , H02J3/01 , H02J3/02 , H02J3/14 , H02J3/18 , H02J3/38 , H02J3/44 , H02J13/00 , H02M1/42 , H02J3/46
Abstract: An electrical distribution grid energy management and router device, or GER device, may be installed in a distribution grid, and route power from power supply to one or more power consumers. The GER devices described herein may provide platforms to add one or more features to a distribution transformer, provide additional features and benefits to both the utility company and end consumer, and may serve as a platform for providing other features, such as multi-layer protection systems for detecting, among other things, one or more fault conditions, and responding to such conditions when detected. A GER device may include sensors to measure electrical properties of incoming and outgoing power, and may include an electrical circuit layer having a central DC power stage.
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Patent Agency Ranking
公开(公告)号：US20250047198A1
公开(公告)日：2025-02-06
申请号：US18923432
申请日：2024-10-22
Applicant: FUJI ELECTRIC CO., LTD.
Inventor： Ryuunosuke ARAUMI , Ryuji YAMADA
Abstract: An integrated circuit including: a first command value output circuit outputting a first command value to turn on a transistor for a first time period; an on signal output circuit outputting an on signal to turn on the transistor, in response to an inductor current decreasing to or below a predetermined value after turning-off of the transistor; a delay circuit delaying the on signal by a predetermined time period; a correction circuit generating a second command value to turn on the transistor for a second time period; a driver circuit turning on and off the transistor respectively based on the delayed on-signal and the second command value; and a second estimation circuit estimating the rectified voltage. The correction circuit corrects the first command value based on the first voltage, the estimated rectified voltage, and the predetermined time period.
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公开(公告)号：US20250047197A1
公开(公告)日：2025-02-06
申请号：US18762133
申请日：2024-07-02
Applicant: Yazaki Corporation
Inventor： Daisuke MAEZAKI , Michito ENOMOTO , Ryo GONDO , Yoshiya OHNUMA , Shohei KOMEDA , Shunsuke TAKUMA
Abstract: A charger includes a rectifier, a DC/DC converter, and a power ripple absorption circuit including, wherein a first diode is connected between an inductor of the power ripple absorption circuit and the rectifier, a second diode is connected between the inductor and the rectifier, a capacitor and a first switch are connected in series between a first line and a second line, a third diode is connected between a line connecting the capacitor and the first switch and the inductor, a second switch is connected between a line connecting the inductor and the third diode and the second line, and wherein a summation of a power output from the alternating current power supply and a power output from the capacitor is controlled to become constant, and the first switch is kept ON in a discharge period in which an instantaneous power is lower than an average power.
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公开(公告)号：US12214684B2
公开(公告)日：2025-02-04
申请号：US17601762
申请日：2021-03-08
Applicant: ZHEJIANG HANMINGBO NEW ENERGY CO., LTD.
Inventor： Zhengmao Zhu
IPC: B60L53/24 , H02J7/00 , H02J7/02 , H02K3/28 , H02K11/049 , H02K11/33 , H02M1/42 , H02M3/335 , H02P27/08
Abstract: The present teaching relates to method and system for charging a rechargeable battery deployed in an electric apparatus. The system resides in the electric apparatus. The system comprises a motor, an inverter, an output rectifier, a configurator, and a controller. The motor comprises a stator having a plurality of stator teeth and a plurality of stator windings wounded on the plurality of stator teeth. The inverter comprises a plurality of power switch devices. The configurator comprises a plurality of contactors coupled with the plurality of stator windings and the plurality of power switch devices. The controller controls the plurality of power switch devices and the plurality of contactors, so as to configure the system to operate in one of a traction mode and a charging mode.
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公开(公告)号：US20250038654A1
公开(公告)日：2025-01-30
申请号：US18760087
申请日：2024-07-01
Applicant: SCHNEIDER ELECTRIC IT CORPORATION
Inventor： Kapil Sunil Bhise , Pin-Chieh Chan , Kuo-Liang Lee , Ming-Chieh Chang , Pradeep Tolakanahalli Nagabhushanrao , Damir Klikic , Hsuang-Chang Chiang
Abstract: Examples of the disclosure include a power-conditioning system comprising a load output configured to be coupled to a load, a power-factor-correction circuit (PFC) comprising a first switching leg and a second switching leg, wherein the first switching leg and the second switching leg are configured to be controlled based on a first modulation index, an inverter comprising the second switching leg and a third switching leg, wherein the third switching leg is configured to be controlled based on a second modulation index, and a capacitor coupled to an inverter output of the inverter and being coupled in series with the load output.
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公开(公告)号：US20250038652A1
公开(公告)日：2025-01-30
申请号：US18360501
申请日：2023-07-27
Applicant: Hong Liu Co., Ltd.
Inventor： Mu-Chun LIN
Abstract: A configurational structure of a unidirectional/bidirectional AC/DC power supply includes: a case, having a first lateral wall and a second lateral wall at two transverse sides thereof and defining a front wall and a back wall at two longitudinal sides thereof; a first bus unit, being installed in the case and against the first lateral wall; a power factor correction (PFC) unit, being installed in the case and close to the front wall; three power module units, being installed abreast in the case, the power module units and located between the PFC unit and the back wall; a second bus unit, being installed on the back wall; and a control system unit, being installed in the case and against the second lateral wall. Thereby, with the sophisticated configuration and layout formed among the components, the resulting power supply has reduced distortion, enhanced performance, and improved efficiency.
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